Patents by Inventor Sumin YUAN

Sumin YUAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Low noise amplifier protection
    Patent number: 11265039
    Abstract: The apparatus includes a first transistor having a gate/base terminal to receive a first drive control signal used for controlling a driver stage of the transceiver and a drain/collector terminal coupled to a control terminal of a switch of the transceiver. The first transistor is switched on when the first drive control signal is at a first level that enables the driver stage to amplify a first RF signal. When the first transistor is switched on, the drain/collector terminal of the first transistor outputs to a control terminal of the switch a switch control signal at a second level that enables the switch to provide a portion of the RF signal reflected by the antenna to the load.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: March 1, 2022
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Lihuan Chen, Sumin Yuan, Jun Ji
  • LOW NOISE AMPLIFIER PROTECTION
    Publication number: 20210159937
    Abstract: The apparatus includes a first transistor having a gate/base terminal to receive a first drive control signal used for controlling a driver stage of the transceiver and a drain/collector terminal coupled to a control terminal of a switch of the transceiver. The first transistor is switched on when the first drive control signal is at a first level that enables the driver stage to amplify a first RF signal. When the first transistor is switched on, the drain/collector terminal of the first transistor outputs to a control terminal of the switch a switch control signal at a second level that enables the switch to provide a portion of the RF signal reflected by the antenna to the load.
    Type: Application
    Filed: February 2, 2021
    Publication date: May 27, 2021
    Applicant: Nokia Solutions and Networks Oy
    Inventors: Lihuan CHEN, Sumin YUAN, Jun JI
  • LOW NOISE AMPLIFIER PROTECTION
    Publication number: 20200259518
    Abstract: The apparatus includes a first transistor having a gate/base terminal to receive a first drive control signal used for controlling a driver stage of the transceiver and a drain/collector terminal coupled to a control terminal of a switch of the transceiver. The first transistor is switched on when the first drive control signal is at a first level that enables the driver stage to amplify a first RF signal. When the first transistor is switched on, the drain/collector terminal of the first transistor outputs to a control terminal of the switch a switch control signal at a second level that enables the switch to provide a portion of the RF signal reflected by the antenna to the load.
    Type: Application
    Filed: August 13, 2018
    Publication date: August 13, 2020
    Applicant: Nokia Solutions and Networks Oy
    Inventors: Lihuan CHEN, Sumin YUAN, Jun JI